This Texas federal appeal and its Georgia companion, Doe v. Bolton, post, p. 179, present constitutional challenges to state criminal abortion legislation. The Texas statutes under attack here are typical of those that have been in effect in many States for approximately a century. The Georgia statutes, in contrast, have a modern cast and are a legislative product that, to an extent at least, obviously reflects the influences of recent attitudinal change, of advancing medical knowledge and techniques, and of new thinking about an old issue.